Extract 30 seconds of audio

Hi - Anyone know of a software application that will automatically extract 30 seconds of audio from a wav or mp3 track? Would be great to set it to just pull 30 seconds from a large volume of tracks and rename using some sort of formula. I'm sure I there is something, but after extensive searching, I can't find anything!!

A program capable of
-cropping an audio file to an arbitrary 30 second sequence
-conducting this operation on multiple files, preferrably in a single command
-rename the files based on one or more criterion

I believe your best solution would be a program called GoldWave. It's batch processing capabilities make it perfect for what you need. Select your volume of files in its batch processor, configure "AutoTrim" under effects for 30 seconds and set the renaming conventions based on ID3 tags.

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